Calculating the Required
When you want to test a new design
of a direct mailing or simply change your offer, you may
want to test this not on the total customer file but on a
small selection. Large enough to give you correct
answers, but certainly small enough to provide
information on which you can rely.
In this case you should calculate
the appropriate sample-size by using this calculator. It
will tell you how big your sample should be so that you
can draw the right conclusions out of it.
These calculators are provided as is (mainly to
demonstrate the techniques and tools of
Database-Marketing) and we do not accept any
responsibility for incorrect results. Although we have
designed each of them with all of our experience - if
you rely on the results you do so at your own risk.
And a technical note:
information. If it does not work with your browser then
your browser! In the first case you should upgrade to the
latest version of the browser software - in the latter
"Options"-menue of your browser.